Why Did the CIA Seek to Destabilize the Government of Chile

Why did the CIA seek to destabilize the government of Chile after 1970?

A) because it was a strong ally of the Soviet Union
B) because Augusto Pinochet, the leader, was a declared communist
C) because it had not been democratically elected
D) because Chile's geographical position was key to access the Pacific Ocean and the United States wanted to build a military base there
E) because Chileans had elected a socialist president, Salvador Allende